Interface energetics and engineering of organic heterostructures in organic photovoltaic cells

The reliable information about interface energetics of organic materials, especially the energy level alignment at organic het- erostructures is of pronounced importance for unraveling the photon harvesting and charge separation process in organic pho- tovoltaic （OPV） cells. This article provides an...

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Bibliographic Details
Published in:Science China. Chemistry 2016-04, Vol.59 (4), p.422-435
Main Authors: Li, Yan-Qing, Wang, Qian-Kun, Ou, Qing-Dong, Tang, Jian-Xin
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Electric contacts
Energy levels
Heterostructures
Organic materials
Perovskites
Photovoltaic cells
Reviews
Substrates
分离过程
异质结构
接触界面
有机光伏电池
材料界面
界面工程
界面热力学
能量水平
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Description
Summary:The reliable information about interface energetics of organic materials, especially the energy level alignment at organic het- erostructures is of pronounced importance for unraveling the photon harvesting and charge separation process in organic pho- tovoltaic （OPV） cells. This article provides an overview of interface energetics at typical planar and mixed donor-acceptor het- erostructures, perovskite/organic hybrid interfaces, and their contact interfaces with charge collection layers. The substrate ef- fect on energy level offsets at organic heterostructures and the processes that control and limit the OPV operation are presented Recent efforts on interface engineering with electrical doping are also discussed.
ISSN:1674-7291
1869-1870
DOI:10.1007/s11426-015-5524-5